NY Property Records
4 Keystone Ct
4 Keystone Ct
Smithtown · Suffolk County · 11787
$1,150,000Full market value210 · ResidentialSold $698,000 · Aug 2016
Owner of record
OwnerRostek, Katarzyna M
Mailing address4 Keystone Ct · Smithtown, NY, 11787
Assessment · 2025 roll
Land assessed$570
Total assessed$9,200
Full market value$1,150,000
Est. annual tax$21,836 (2024, excl. special districts)
Building
StyleColonial
Year built2016
Living area2,974 sq ft
Bedrooms4
Full baths2
HeatHot air
FuelGas
Lot
Size0.57 acres
Services & districts
WaterUnknown
SewerUnknown
UtilitiesUnknown
School districtSmithtown (473401)
Recorded sales · 1
Deed$698,000Aug 12, 2016
seller DEAMER ASSICIATES LLC
buyer KATARZYNA ROSTEK
Liber 12885, page 398
From NYS RP-5217 transfer reports. For the deed itself, use the liber and page at the county clerk.
Deed & identifiers
Deed book / page12885 / 398
SBL13000000040630070000
Print key130.-4-63.7
SWIS473489
Parcel ID47348913000000040630070000
Who owns 4 Keystone Ct?
4 Keystone Ct, Smithtown is owned by Rostek, Katarzyna M per the 2025 NYS assessment roll. It last sold for $698,000 in Aug 2016.
Nearby on Keystone Ct
Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it. Disclaimer · Request redaction
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